Cognition is very important in our daily life. However. amblyopia has abnormal visual cognition. Physiological changes of the brain during processes of cognition could be reflected with ERPs. https://www.roneverhart.com/Toshiba-AL13SX-AL13SXB30EN-300GB-15K-RPM-SAS-12Gb-s-512n-128MB-2-5-Hard-Drive/